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Home Return to list Severe Thunderstorm Warning 0264 Issued by the Rapid City Forecast Office
Action: New Issued At: 2026-08-11 19:02:56
735
WUUS53 KUNR 120002
SVRUNR
SDC019-063-093-105-120100-
/O.NEW.KUNR.SV.W.0264.260812T0002Z-260812T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Rapid City SD
602 PM MDT Tue Aug 11 2026
The National Weather Service in Rapid City has issued a
* Severe Thunderstorm Warning for...
Eastern Butte County in northwestern South Dakota...
South Central Harding County in northwestern South Dakota...
Southwestern Perkins County in northwestern South Dakota...
North Central Meade County in west central South Dakota...
* Until 700 PM MDT.
* At 602 PM MDT, a severe thunderstorm was located 6 miles southeast
of Crow Buttes, or 29 miles south of Buffalo, moving southeast at
30 mph.
THIS IS A DESTRUCTIVE STORM FOR HAYSTACK BUTTES, HOOVER, CASTLE
ROCK.
HAZARD...Baseball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be severely injured.
Expect shattered windows, extensive damage to roofs,
siding, and vehicles.
* Locations impacted include...
Newell, Hoover, Castle Rock, Redig, Mud Butte, Dears Ears Butte,
Haystack Buttes, Newell Lake and Crow Buttes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter now inside an interior room on the lowest floor of a
well-built structure. This storm is capable of producing destructive
hail and damaging winds.
Continuous cloud to ground lightning is occurring with this storm.
Lightning is one of natures leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
&&
LAT...LON 4518 10371 4528 10360 4533 10341 4504 10274
4466 10340
TIME...MOT...LOC 0002Z 319DEG 26KT 4517 10348
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SE
Action: Continued Issued At: 2026-08-11 19:16:27
267
WWUS53 KUNR 120016
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
616 PM MDT Tue Aug 11 2026
SDC063-105-120026-
/O.CAN.KUNR.SV.W.0264.000000T0000Z-260812T0100Z/
Harding SD-Perkins SD-
616 PM MDT Tue Aug 11 2026
...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTH CENTRAL HARDING
AND SOUTHWESTERN PERKINS COUNTIES...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM MDT for a
portion of northwest South Dakota.
&&
LAT...LON 4508 10365 4515 10358 4518 10319 4509 10296
4504 10296 4504 10282 4502 10277 4466 10340
TIME...MOT...LOC 0002Z 319DEG 26KT 4517 10348
$$
SDC019-093-120100-
/O.CON.KUNR.SV.W.0264.000000T0000Z-260812T0100Z/
Butte SD-Meade SD-
616 PM MDT Tue Aug 11 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 7 PM MDT FOR
EASTERN BUTTE AND NORTHWESTERN MEADE COUNTIES...
At 616 PM MDT, a severe thunderstorm was located over Haystack
Buttes, or 34 miles northeast of Belle Fourche, moving southeast at
35 mph.
THIS IS A DESTRUCTIVE STORM FOR HAYSTACK BUTTES, CASTLE ROCK.
HAZARD...Three inch hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be severely injured. Expect
shattered windows, extensive damage to roofs, siding, and
vehicles.
Locations impacted include...
Newell, Hoover, Castle Rock, Mud Butte, Dears Ears Butte, Newell
Lake and Haystack Buttes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter now inside an interior room on the lowest floor of a
well-built structure. This storm is capable of producing destructive
hail and damaging winds.
Continuous cloud to ground lightning is occurring with this storm.
Lightning is one of natures leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
&&
LAT...LON 4508 10365 4515 10358 4518 10319 4509 10296
4504 10296 4504 10282 4502 10277 4466 10340
TIME...MOT...LOC 0002Z 326DEG 29KT 4514 10349
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...3.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SE
Action: Cancelled Issued At: 2026-08-11 19:16:27
267
WWUS53 KUNR 120016
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
616 PM MDT Tue Aug 11 2026
SDC063-105-120026-
/O.CAN.KUNR.SV.W.0264.000000T0000Z-260812T0100Z/
Harding SD-Perkins SD-
616 PM MDT Tue Aug 11 2026
...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTH CENTRAL HARDING
AND SOUTHWESTERN PERKINS COUNTIES...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM MDT for a
portion of northwest South Dakota.
&&
LAT...LON 4508 10365 4515 10358 4518 10319 4509 10296
4504 10296 4504 10282 4502 10277 4466 10340
TIME...MOT...LOC 0002Z 319DEG 26KT 4517 10348
$$
SDC019-093-120100-
/O.CON.KUNR.SV.W.0264.000000T0000Z-260812T0100Z/
Butte SD-Meade SD-
616 PM MDT Tue Aug 11 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 7 PM MDT FOR
EASTERN BUTTE AND NORTHWESTERN MEADE COUNTIES...
At 616 PM MDT, a severe thunderstorm was located over Haystack
Buttes, or 34 miles northeast of Belle Fourche, moving southeast at
35 mph.
THIS IS A DESTRUCTIVE STORM FOR HAYSTACK BUTTES, CASTLE ROCK.
HAZARD...Three inch hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be severely injured. Expect
shattered windows, extensive damage to roofs, siding, and
vehicles.
Locations impacted include...
Newell, Hoover, Castle Rock, Mud Butte, Dears Ears Butte, Newell
Lake and Haystack Buttes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter now inside an interior room on the lowest floor of a
well-built structure. This storm is capable of producing destructive
hail and damaging winds.
Continuous cloud to ground lightning is occurring with this storm.
Lightning is one of natures leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
&&
LAT...LON 4508 10365 4515 10358 4518 10319 4509 10296
4504 10296 4504 10282 4502 10277 4466 10340
TIME...MOT...LOC 0002Z 326DEG 29KT 4514 10349
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...3.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SE
Action: Continued Issued At: 2026-08-11 19:34:27
806
WWUS53 KUNR 120034
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
634 PM MDT Tue Aug 11 2026
SDC019-093-120100-
/O.CON.KUNR.SV.W.0264.000000T0000Z-260812T0100Z/
Butte SD-Meade SD-
634 PM MDT Tue Aug 11 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 7 PM MDT FOR
EASTERN BUTTE AND NORTHWESTERN MEADE COUNTIES...
At 634 PM MDT, a severe thunderstorm was located over Newell Lake, or
28 miles northeast of Belle Fourche, moving southeast at 45 mph.
THIS IS A DESTRUCTIVE STORM FOR CASTLE ROCK, NEWELL LAKE.
HAZARD...80 mph wind gusts and three inch hail.
SOURCE...Automated observations.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be heavily damaged. Expect
considerable damage to roofs, windows, and vehicles.
Extensive tree damage and power outages are likely.
Locations impacted include...
Newell, Castle Rock, Dears Ears Butte, Newell Lake and Haystack
Buttes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter now inside an interior room on the lowest floor of a
well-built structure. This storm has produced widespread destructive
winds and is capable of producing destructive hail.
Continuous cloud to ground lightning is occurring with this storm.
Lightning is one of natures leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
This dangerous storm is capable of producing large hail driven by
severe winds! Seek shelter now inside a sturdy structure and stay
away from windows! If you are caught outdoors, cover your head and
neck.
&&
LAT...LON 4497 10359 4510 10344 4509 10310 4497 10286
4466 10340
TIME...MOT...LOC 0016Z 324DEG 37KT 4499 10349
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...3.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...80 MPH
$$
SE
Action: Continued Issued At: 2026-08-11 19:39:57
935
WWUS53 KUNR 120039
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
639 PM MDT Tue Aug 11 2026
SDC019-093-120100-
/O.CON.KUNR.SV.W.0264.000000T0000Z-260812T0100Z/
Butte SD-Meade SD-
639 PM MDT Tue Aug 11 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 7 PM MDT FOR
SOUTHEASTERN BUTTE AND NORTHWESTERN MEADE COUNTIES...
At 639 PM MDT, a severe thunderstorm was located 6 miles north of Owl
Butte, or 29 miles northeast of Sturgis, moving southeast at 45 mph.
THIS IS A DESTRUCTIVE STORM FOR NEWELL LAKE, NEWELL.
HAZARD...90 mph wind gusts and baseball size hail.
SOURCE...Automated observations.
IMPACT...You are in a life-threatening situation. Flying debris may
be deadly to those caught without shelter. Mobile homes will
be heavily damaged or destroyed. Homes and businesses will
have substantial roof and window damage. Expect extensive
tree damage and power outages.
Locations impacted include...
Newell, Castle Rock, Dears Ears Butte and Newell Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter now inside an interior room on the lowest floor of a
well-built structure. This storm has produced widespread destructive
winds and is capable of producing destructive hail.
This is a dangerous situation with winds expected to produce damage
similar to a tornado. Move to an interior room on the lowest floor of
a well-built structure. Mobile homes and high profile vehicles are at
an enhanced risk for damage.
Continuous cloud to ground lightning is occurring with this storm.
Lightning is one of natures leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
This dangerous storm is capable of producing large hail driven by
severe winds! Seek shelter now inside a sturdy structure and stay
away from windows! If you are caught outdoors, cover your head and
neck.
&&
LAT...LON 4485 10352 4506 10338 4507 10306 4497 10286
4466 10340
TIME...MOT...LOC 0034Z 324DEG 37KT 4484 10334
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...90 MPH
$$
SE
Action: Cancelled Issued At: 2026-08-11 19:51:27
352
WWUS53 KUNR 120050
SVSUNR
Severe Weather Statement
National Weather Service Rapid City SD
650 PM MDT Tue Aug 11 2026
SDC019-093-120100-
/O.CAN.KUNR.SV.W.0264.000000T0000Z-260812T0100Z/
Butte SD-Meade SD-
650 PM MDT Tue Aug 11 2026
...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTHEASTERN BUTTE
AND NORTHWESTERN MEADE COUNTIES...
The Severe Thunderstorm Warning that was previously in effect has
been reissued for Butte and Meade Counties and is in effect until 745
PM MDT. Please refer to that bulletin for the latest severe weather
information.
A Severe Thunderstorm Watch remains in effect until 800 PM MDT for
portions of northwest and west central South Dakota.
&&
LAT...LON 4485 10352 4506 10338 4507 10306 4497 10286
4466 10340
TIME...MOT...LOC 0039Z 324DEG 37KT 4479 10329
$$
SE
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